I keep getting an error message saying my app has stopped working I've tried everything and nothing

Welcome to our Community @Goldendezier and Happy New Year 🎇🎊🤗

This is a Google Play Store error so try clearing the cache:

-Go to apps and find the app called 'Settings'
-Locate the menu called 'Apps' or 'Application Manager' depending on the device model
-Scroll down until you find the 'Google Play Store'
-From here click on 'Clear cache' then 'Uninstall updates’ and finally 'Clear data'. Please notice that you will get a warning when clicking the 'Clear data' button - don't worry as it's just a reset.

Hope this does the trick 😉